Remembering that these represent- soils under actual cultivation, and 

 this in connection with a very exhausting crop, it may be obs&rved that 

 they all contain at least a fair amount of lime, and that this plant food 

 is present in quite satisfactory proportion in most of the samples taken. 

 The soil from Wupperthal was deficient in potash, but at Beukes Kraal 

 the quantity of this constituent was normal, while of the Kromme Rivier 

 sample No. 6 was very well stocked in this particular. Phosphoric oxide 

 is either wholly inadequate, or present only in moderate proportion right 

 through, sample No. 5 excepted : in the latter case the amount is, rela- 

 tively speaking, so extraordinarily high as to suggest the inference that it 

 is due to the method of fertilising already alluded to ; in fact, seeing that 

 in the soils of this Division the plant food constituents would not be ex- 

 pected to be present in any larger proportion than in the soils of the Ceres 

 Division, where similar geological influences prevail, it is probable that 

 nearly all these Clanwilliam soils had been altered in chemical composi- 

 tion by extensive fertilising agencies. 



No. 

 1. 

 2. 

 3. 

 4. 

 5. 

 6. 



COLESBERG. 



(Privately collected.) 



Field Cornetcy. Farm or place. 



Upper Hantam. Oorlogspoort. 



Collector, 

 W. Webb. 



Six samples of virgin soil were collected at various localities on the 

 farm Oorlogspoort, formerly known as Zeekoegat. The surface soil of the 

 farm is ordinary Karroo veld, the underlying formation being shale, alter- 

 nating with lime. The chemical composition of the soil is apparently iiu- 

 fluenced by the rocks of the Stormberg series. 



The analyses of these soils resulted as shown in tihe following table : 



Percent, of 



Field 



Sample. 



(Method I.) 



Percentage of Soil sifted through 

 1 mm. Sieve. 



No. Fine earth. Water. Organic Chlorine. Nitrogen. 



matter. 



1. 91-1 2-49 3-73 '006 '064 



2. 92-7 2'67 3'69 '007 '064 



3. 93-8 2-94 3'84 '007 '071 



4. 97-6 4'40 6-51 '003 '165 



5. 98-1 2-33 3-84 '007 '101 



6. 94'7 3-51 3'81 '006 '064 



Percentage of Soil sifted 

 \ mm. Sieve. 



Phos- 



Lime. Potash, phoric 

 oxide. 



046 

 094 

 114 

 506 

 066 

 216 



156 

 165 

 183 

 203 

 184 

 136 



068 

 072 

 070 

 115 

 073 

 069 



These soils, somewhat similar in their geological origin to those of 

 the Albert and Aliwal North Divisions, are, like the soils of the Divisions 

 named, all rather fine in texture, but better, in respect of potash, than the 



